EP1413375B1 - Dispositif de serrage pour porte-outil - Google Patents

Dispositif de serrage pour porte-outil Download PDF

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Publication number
EP1413375B1
EP1413375B1 EP03445118.7A EP03445118A EP1413375B1 EP 1413375 B1 EP1413375 B1 EP 1413375B1 EP 03445118 A EP03445118 A EP 03445118A EP 1413375 B1 EP1413375 B1 EP 1413375B1
Authority
EP
European Patent Office
Prior art keywords
tool
holder
clamp
tool assembly
fastener
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03445118.7A
Other languages
German (de)
English (en)
Other versions
EP1413375A2 (fr
EP1413375A3 (fr
Inventor
Akio Shiraiwa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sandvik Intellectual Property AB
Original Assignee
Sandvik Intellectual Property AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sandvik Intellectual Property AB filed Critical Sandvik Intellectual Property AB
Publication of EP1413375A2 publication Critical patent/EP1413375A2/fr
Publication of EP1413375A3 publication Critical patent/EP1413375A3/fr
Application granted granted Critical
Publication of EP1413375B1 publication Critical patent/EP1413375B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/04—Tool holders for a single cutting tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/24—Tool holders for a plurality of cutting tools, e.g. turrets
    • B23B29/26—Tool holders in fixed position
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2222—Tool adjustable relative to holder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2222—Tool adjustable relative to holder
    • Y10T407/2252—Rectilinearly
    • Y10T407/2256—Rectilinearly including wedge clamp element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/2282—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder including tool holding clamp and clamp actuator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/2282—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder including tool holding clamp and clamp actuator
    • Y10T407/2284—Wedge clamp element

Definitions

  • the present invention relates to a tool assembly according to the preamble of claim 1.
  • a clamping device for attaching a tool holder to various kinds of machine tools including a lathe, a numerical controlled lathe and an automatic copying lathe is presented.
  • a conventional tool assembly 101 comprising a support body 102 and a plurality of tool holders 111 is depicted in Fig. 8 .
  • a clamping device for each tool holder 111 shown in Fig. 8 is provided with a wedge-type holder clamping tool 112 having a plurality of fastening bolts 114 and one jack-up bolt 113.
  • a plurality of fastening bolts of the wedge-type holder clamping tool are fastened to the support body 102, so that the tool holder can be connected to the support body via interaction between respective wedge surfaces (not shown) of the wedge-type holder clamping tool 112 and the support body, which interaction pushes the clamping tool 112 against the tool holder 111.
  • the jack-up bolt 113 that has been loosened in advance is screwed against the support body after the plural clamping bolts are loosened, so that the wedge surface of the wedge-type holder clamping tool is forcefully moved away from the wedge surface of the support body.
  • the tool holder can be removed.
  • a device for holding a tool holder shank in a machine tool is disclosed in Japanese Unexamined Patent Publication No. 2000-190110 .
  • the device releasably holds a holder shank of the tool holder to which a cutting insert is attached and a lock rod is provided on a base member.
  • the attachment/removal structure between the holder shank and the lock rod is complicated and it is difficult to reduce the size of the device.
  • Japanese Unexamined Patent Publication No. 2001-300802 discloses a detachable securing mechanism of a cutting tool used in a comb-type tool rest of a machine tool such as a numerical controlled lathe.
  • the mechanism is provided with a supporting member for supporting an arrangement of plural tools.
  • the supporting member attaches the cutting tool to the comb-type tool rest of the machine tool by fastening a plurality of mounting bolts.
  • U.S. Patent No. 4,599,923 discloses a tool assembly according to the preamble of claim 1 comprising a toolholder having a groove for receiving an insert that is clamped in the groove by a wedge and bolt arrangement, the toolholder further having an adjustment screw for contacting an end of the insert to adjust the position of the cutting insert along an axis of the groove.
  • the object of the present invention is to provide a clamping tool capable of reducing an attachment/removal time when one or plural tool holders, especially small tool holders, are attached to or removed from the machine tool such as the lathe, the numerical controlled lathe and the automatic copying lathe, and capable of improving the accuracy in positioning of the tool holder.
  • the present invention provides a tool assembly according to claim 1.
  • the entire length of a wedge-type holder clamping tool for fastening the tool holder to the clamping device is shorter than that of a conventional clamping tool, and only one fastening bolt is provided on the wedge-type holder clamping tool.
  • the clamping tool is forcefully displaced away from the support body, so that the tool holder can be attached to or removed from the clamping device.
  • this is done without completely removing the clamping tool or the fastening bolt.
  • the number of the fastening bolts can be reduced and a jack-up bolt can be dispensed with, and thus a miniaturization and simplification of the wedge-type holder clamping tool can be archived.
  • the reduction of time required for attaching/removing the tool holder to/from the clamping device can be archived without modifying a tool holder generally and currently used.
  • the clamping device for the tool holder is provided with a stopper block provided at the rear end of the tool holder remotely of a cutting edge of the tool holder, and a wedge-type stopper clamping tool is provided for securing the stopper block to a predetermined position.
  • the wedge-type holder clamping tool is provided with a mounting bolt so that the tool holder can be attached to the clamping device with stability.
  • the mounting bolt is replaced with an elastic mounting tool or a mounting bolt with an elastic mounting tool, so that the tool holder can be attached to the clamping device with further stability.
  • Fig. 1 (a-1) Depicted in Fig. 1 (a-1) is a tool assembly comprising a support body 1A, a tool holder 5 mounted in a groove 1B of the support body, and a clamping device for clamping the tool holder.
  • the tool holder carries a replaceable cutting insert 5-1.
  • the clamping device includes a stopper block 2 disposed behind the tool holder for positioning the tool holder along an axis A, a wedge-type stopper clamping tool (stopper clamp) 3 for clamping the stopper block in place, a first fastener 6 for securing the clamping tool 3 to the support body 1A, a wedge-type holder clamping tool (holder clamp) 4 for clamping the tool holder in place, and a second fastener 7 for securing the clamping tool 4 to the support body 1A.
  • the fastener 6 extends through a through-hole 8' formed in the stopper clamp 3, and is secured in the support body 1A by a thread connection.
  • the fastener 7 is similarly attached.
  • each fastener 6, 7 has a threaded shank that can be directly threaded to the support body, or indirectly thereto as explained in connection with Figs. 10-16 .
  • the fastening bolts 6, 7 are rotated in a fastening direction so that the wedge-type stopper clamping tool 3 and the wedge-type holder clamping tool 4 are fastened to the support body 1A, respectively, and are rotated in a loosening direction so that the wedge-type stopper clamping tool 3 and the wedge-type holder clamping tool 4 are moved away from the support body 1A, and thus the tool holder can be detachably attached to the support body.
  • the side face 13 of the wedge-type holder clamping tool 4 is clamped, at an angle 16, to the side face 14 of the tool holder 5.
  • the side face 13 of the tool holder must be oriented at an angle 16 shown in Fig. 1 (b-2).
  • Figs. 2(a), 2(b) and 2(c) show the clamping tool fastening bolt 7. In these drawings, only the clamping tool fastening bolt 7 is shown.
  • the stopper fastening bolt 6 can be formed into the same shape as that of clamping tool fastening bolt 7.
  • the clamping tool fastening bolt 7 is attached to the wedge-type holder clamping tool 4.
  • the fastening bolt is provided with, for example, an elastic element in the form of a ring 17 such as a lock washer or a spring washer.
  • the elastic ring pushes the wedge-type holder clamping tool 4 (or the stopper clamping tool 3 in the case of the fastening bolt 6) in a direction D away from the clamping device upon loosening the fastening bolt when the wedge-type stopper clamping tool 3 or the wedge-type holder clamping tool 4 is to be removed from the clamping device. Therefore, the wedge-type stopper clamping tool 3 or the wedge-type holder clamping tool 4 can be attached to or removed form the clamping device by the use of only one fastening bolt provided with the elastic ring.
  • a slit 10 can be provided in the fastening bolt as shown in Fig. 2(b) and the elastic ring is attached to the slit as shown in Fig. 2(c) .
  • a fastening bolt 7' with left and right-hand screw threads i.e., a left-hand thread 7'-1 and right-hand thread 7'-2.
  • the bolt through holes 8', 9' in the wedge-type stopper clamping tool 3 and the wedge-type holder clamping tool 4 are replaced with threaded holes having the same pitch as that of the corresponding thread of the corresponding thread of the fastening bolts.
  • the left-hand thread is used for the threaded holes of the wedge-type holder clamping tools 3, 4 because the right-hand thread is used for the threaded holes of a conventional clamping device 1 (for example, a tool rest including an automatic copying lathe).
  • a conventional clamping device 1 for example, a tool rest including an automatic copying lathe.
  • the fastening bolt 7' with the left and right-hand screws is rotated in a removing direction, so that the wedge-type holder clamping tool 4 is positively moved away from the tool holder 5 so as to remove the tool holder 5 from the support body 1A.
  • the block can be attached or removed by use of fastening bolt 6 with the left and right-hand screws.
  • the wedge-type stopper clamping tool 3 or the wedge-type holder clamping tool 4 can be attached to or removed from the clamping device by use of only the fastening bolt with the left and right-hand screws.
  • the device can be made smaller because the fastening bolt has no portion whose diameter is larger than the diameter of the threaded portions. Namely the clamping device can be applied to a tool holder having a small shaft.
  • the wedge-type holder clamping tool 4 for attaching the tool holder to the clamping device with stability will be described below.
  • the wedge-type holder clamping tool 4 is provided with pressing bolts 18-1, 18-2, 18-3 for pressing against the side face 14, a top face or a comer 19 of the tool holder 5.
  • Figs. 4 (a-1) to 4(b-2) show the pressing bolt for pressing against the side face 14.
  • Fig. 4 (c-1) and 4(c-2) shows the pressing bolt for pressing against the comer 19.
  • the wedge-type holder clamping tool is provided with the pressing bolt so that the tool holder can be appropriately attached to the side face and the bottom face of the groove of the clamping device with stability.
  • the stopper block 2 can be provided with an adjusting bolt 20 or a positioning bar 23 as adjusting means, as shown in Figs. 5 (a-1) to 5(b-4).
  • the first adjusting bolt 20 extends through the stopper block 2 along the central axis thereof, and has a maximum length that is larger than the maximum length of the stopper block.
  • the end face of the adjusting bolt that is in contact with the rear end of the tool holder has a diameter smaller than that of the adjusting bolt.
  • the first adjusting bolt 20 positions the stopper block at a predetermined position by use of the wedge-type stopper clamping tool 3.
  • the adjusting bolt 20 provided in the stopper block 2 positions the tool holder at a predetermined position.
  • the second positioning bar 23 is inserted into a hole that extends through the stopper block 2 along the central axis thereof.
  • the positioning bar 23 is secured and positioned by a securing bolt 21 and a positioning screw 22 that are engaged in threaded holes provided in one face of the stopper block.
  • the second positioning bar 23 positions the stopper block at a predetermined position by use of the wedge-type stopper clamping tool 3. As shown in Fig.
  • the chamfered end of the positioning bar 23 on the side of the bar that faces the tool holder is pressed against the tool holder to position the tool holder by use of the positioning screw 22 provided in the stopper block 2. After that, the positioning bar 23 is secured by the securing bolt 21. This enables the tool holder to be extremely accurately positioned at a predetermined position.
  • V-shaped cuts or recesses 24 are provided at a longitudinal comer of the tool holder 5.
  • the wedge-type holder clamping tool is provided with at least one pressing bolt 18-1 (in Fig. 6 (a-1)(a-2)), pressing bolt 18-2 (in Figs. 6 (b-1) (b-2)), and pressing bolt 18-3 (in Fig. 6 (c-1)(c-2)).
  • At least one pressing bolt 18-1, 18-2, 18-3 is pressed against an inclined surface (near the stopper block) of the V-shaped cut 24, so that the tool holder 5 can be pressed against the stopper block 2 at a predetermined pressure.
  • the pressing bolt 18-1 is engaged toward the side face of the clamping device; the pressing bolt 18-2 is engaged toward the bottom face of the groove of the clamping device; and the pressing bolt 18-3 is engaged at a predetermined angle with respect to the side face and the bottom face of the groove of the clamping device.
  • the tool holder can be pressed against the side face and the bottom face of the groove of the clamping device.
  • the top end of the pressing bolt 18-1, 18-2, 18-3 is shaped into a hemisphere or a cone corresponding to the V-shaped cut. However, if no cut is provided, the top end can be flat.
  • the wedge-type holder clamping tool 4 that attaches the tool holder to the clamping device with further stability will be described below.
  • the wedge-type holder clamping tool 4 is provided with the elastic pressing tool or the pressing bolt with the elastic pressing tool in place of the pressing bolts shown in Fig. 6 (a-1) to 6(c-2).
  • the elastic pressing tool or the pressing bolt with the elastic pressing tool is pressed against the side face 14, the top face or the comer 19 of the tool holder 5.
  • the wedge-type holder clamping tool is provided with the elastic pressing tool or the pressing bolt with the elastic pressing tool, so that the tool holder can be appropriately attached to the side face and the bottom face of the groove of the clamping device with stability.
  • a spring coil, an elastic rubber, a plate spring, a spring washer, a coned disc spring, a spring plunger screw or the like is used as the elastic pressing tool and in the pressing bolt with the elastic pressing tool.
  • a spring plunger screw is shown in Fig. 9 (a-c).
  • the spring plunger screw 26 is provided with: (i) a screw portion 26-1 that presses the tool holder against the abutment surfaces of the groove 1B, (ii) a top end (having a round or flat ) end) 26-2 that abuts with the tool holder, (iii) a plug screw 26-3 that secures a spring, and (iv) a spring 26-4 that presses the tool holder via the top end thereof.
  • V-shaped cuts 24 are provided at a longitudinal comer of the tool holder 5 shown in Fig. 6 (a-1) to 6(c-2), and the wedge-type holder clamping tool is provided with at least one pressing bolt with the elastic pressing tool (for example, the spring plunger screw in Fig. 9a-c ) in place of the pressing bolts shown in Fig. 6 (a-1) to 6(c-2).
  • At least one pressing bolt ) with the elastic pressing tool is pressed against such an inclined surface (near the stopper block) of the V-shaped cut 24, so that the tool holder 5 can be pressed against the stopper block 2 at a predetermined pressure.
  • the pressing bolt with the elastic pressing tool used in place of the pressing bolt shown in Fig. 6 (a-1)(a-2) is engaged toward the side face of the clamping device;
  • the pressing bolt with the elastic pressing tool used in place of the pressing bolt shown in Fig. 6 (b-1)(b-2) is engaged toward the bottom face of the groove of the clamping device;
  • the tool holder can be pressed against the side face and the bottom face of the groove of the clamping device.
  • the top end of the elastic pressing tool that abuts with the V-shaped cut 24 is shaped into a hemisphere or a cone corresponding to the V-shaped cut. However, if no cut is provided, the top end can be flat.
  • a chamfer 25 e.g., a back taper, a truncated cone shape, spherical shape or plural combinations of the back taper, a truncated cone shape and a spherical shape
  • a chamfer 25 is provided on the rear end of the tool holder, so that the tool holder can be easily attached to the support body 1A.
  • a conventional long tool holder can be attached in place of the stopper block 2, by using both the wedge-type stopper clamping tool 3 and the wedge-type holder clamping tool 4.
  • the holder clamping tool 4 can be held in place as shown in Figs. 10 and 11 .
  • the fastening bolt 7 of the wedge-type holder clamping tool 4 is attached to a spring nut 121 to define a thread connection.
  • the spring nut 121 prevents the clamping tool fastening bolt 7 from being detached from the wedge-type holder clamping tool 4, and the wedge-type holder clamping tool 4 is held between the nut 121 and a head of the bolt 7.
  • the fastening bolt 7 of the wedge-type holder clamping tool 4 is fastened to a threaded sleeve-type nut 122 to define a thread connection. Rotation of the nut 122 is facilitated by a knurled ring 123.
  • the holder clamping tool 4 has a slot 9" elongated in a direction transversely of the axis A and through which the bolt 7 passes.
  • the clamping tool 4 can be raised away from the tool holder in order to allow removal (or insertion) of the tool holder even while the fastening bolt 7 remains secured in the support body 1A.
  • the tool holder 4 can be temporarily fastened without completely detaching the clamping tool fastening bolt 7 or the holder clamp 4.
  • FIG. 12 In the clamping device of the tool holder according to the present invention, the fastening bolt 7 is fastened to the spring nut 121.
  • An upwardly extending spring mounting slit 127 is provided in the holder clamp 4 to one side of the elongated through hole 9" of the wedge-type holder clamping tool 4.
  • a biasing spring 126 extends into the slit so that a spring end 126-1 exerts an elastic biasing force in a direction to increase a distance between the clamping device and a wedge-type side face 12a of the wedge-type holder clamping tool 4, so that the holder clamping tool 4 presses against the holder 5.
  • the tool holder 5 remains temporarily fastened to the support body 1A even while the clamping bolt fastening tool 7 is loosened but still secured to the support body 1A. In that state, the tool holder 5 can be inserted or removed.
  • the biasing spring 128 has an end 128-1 which exerts the elastic biasing force described above.
  • the fastening bolt 7 is fastened to the sleeve nut 122.
  • a leaf spring 124 is provided in the wedge-type holder clamping tool 4 between the sleeve nut 122 and a wedge-type side face 12a of the wedge-type holder clamping tool to temporarily fasten the tool holder 5 to the clamping device. Accordingly, the leaf spring 124 exerts an elastic force in a direction to increase a distance between the wedge-type side face 12a and the sleeve nut 122.
  • the holder clamping tool 4 presses against the tool holder 5, wherein the tool holder 5 remains temporarily fastened to the clamping device, even when the clamping bolt fastening tool 7 is loosened.
  • a coil spring 125 having a fixed end is provided in place of the leaf spring 124. Accordingly, the coil spring 125 having a fixed end exerts an elastic force in a direction to increase a distance between the wedge-type side face 12a and the sleeve nut 122, so that the tool holder 5 is temporarily fastened to the clamping device, when the clamping bolt fastening tool 7 is loosened.
  • the wedge-type holder clamping tool 4 is provided with the sleeve nut 122.
  • a laterally biasing spring mounting slit 131 is provided in one of opposite side surface portions of the bolt through hole 9" of the wedge-type holder clamping tool 4 in the minor axis direction thereof.
  • a laterally biasing spring 129 is mounted in the laterally biasing spring mounting slit. One end of the laterally biasing spring 129 is inserted into a hole 132 of the laterally biasing spring mounting slit, and the other end of the laterally biasing spring 129 is disposed between the clamping device fastening bolt 7 and the wedge-type side face 12a.
  • the laterally biasing spring 129 exerts an elastic force in a direction to increase a distance between the wedge-type side face 12a and the sleeve nut 122, so that the tool holder 5 is temporarily fastened to the clamping device 1, when the bolt 7 is loosened. Therefore, with any structure described with reference to Figs. 12 to 16 , the tool holder 5 can be temporarily fastened without detaching the clamping device fastening bolt 7 from the wedge-type holder clamping tool 4. The tool holder 5 can also be inserted and detached from the support body 1A with the bolt 7 being loosened. Moreover, the features disclosed in connection with Figs. 10-16 can be employed in conjunction with a part which pushes the clamp in a direction away from the groove 13 upon loosening the bolt 7, such as the elastic ring 17.
  • the number of fastening bolts for the tool holder can be reduced; the jack-up screws can be dispensed with; and a miniaturization and the simplification of the wedge-type holder clamping tool can be achieved.
  • the time required for attachment/removal of the tool holder can be reduced without modifying the tool holder and the clamping device for the tool holder that are currently used.
  • the tool holder can be disposed at an accurate position, and can be repeatedly disposed at the same accurate position even when replaced. Also, in the clamping device for the tool holder according to the present invention, the tool holder can be temporarily fastened without being detached from the clamping device and without detaching the clamping tool fastening bolt from the wedge-type holder clamping tool when the tool holder is attached to and detached from the clamping device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Turning (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Claims (16)

  1. Ensemble d'outil comprenant un corps de support (1A), un dispositif de serrage et un porte-outil (5) bloqué dans le corps de support par le dispositif de serrage ;
    le corps de support (1A) comprenant une rainure (1B) dans laquelle le porte-outil (5) est disposé, la rainure (1B) comprenant un agencement de surface de butée (13, 15) contre lequel le porte-outil (5) vient en butée,
    le dispositif de serrage comprenant :
    un bloc d'arrêt (2) monté dans la rainure (1B) et venant en butée contre le porte-outil (5), pour positionner le porte-outil (5) le long d'un axe (A) ;
    un étrier de support (4) comprenant :
    une seconde partie de cale calée dans la rainure (1B) et agencée pour appuyer contre le porte-outil (5) dans une direction transversale de l'axe (A), et
    une seconde partie de montage ayant un second trou de passage (9'), et
    une seconde fixation (7, 7') comprenant une tige s'étendant à travers le second trou de passage (9') et comprenant une seconde partie de filetage fixée sur le corps de support (1A) par un second raccordement fileté pour fixer l'étrier de support (4) sur le corps de support (1A),
    caractérisé en ce que l'ensemble d'outil comprend :
    un étrier d'arrêt (3) comprenant :
    une première partie de cale calée dans la rainure et agencée pour appuyer contre le bloc d'arrêt (2) dans une direction transversale de l'axe (A), et
    une première partie de montage ayant un premier trou de passage (8') ;
    une première fixation (6) comprenant une première tige s'étendant à travers le premier trou de passage (8') et comprenant une première partie de filetage fixée par filetage sur le corps de support (1A) par un premier raccordement de filetage pour fixer l'étrier d'arrêt (3) sur le corps de support (1A), la première fixation (6) comprenant une partie de déplacement d'étrier d'arrêt (17) pour éloigner l'étrier d'arrêt (3) du corps de support (1A) en réponse au dévissage de la première fixation (6) ; et
    en ce que la seconde fixation (7) comprend une partie de déplacement d'étrier de support (17, 7') pour éloigner l'étrier de support (4) du corps de support (1A) en réponse au dévissage de la seconde fixation (7).
  2. Ensemble d'outil selon la revendication 1, dans lequel, chacune des première et seconde fixations (6, 7) comprend une tête assemblée à la tige, caractérisé en ce que chacune parmi la partie de déplacement d'étrier (17) et la partie de déplacement d'étrier de support (17) comprend un élément élastique (17) situé entre la tête et l'étrier d'arrêt (3) et l'étrier de support (4) respectifs.
  3. Ensemble d'outil selon la revendication 2, caractérisé en ce que l'élément élastique comprend une bague (17) montée sur la tige.
  4. Ensemble d'outil selon la revendication 1, caractérisé en ce que chacune parmi la première et la seconde tige comprend à la fois un filetage à droite (7'- 2) et un filetage à gauche (7'- 1), dans lequel l'un des filetages à droite et à gauche de la première tige est raccordé par filetage au premier trou de passage (8') et constitue sa partie de déplacement d'étrier d'arrêt, et l'un des filetages à droite et à gauche de la seconde tige est raccordé par filetage au second trou de passage (9') et constitue sa partie de déplacement d'étrier de support.
  5. Ensemble d'outil selon la revendication 1, caractérisé en ce que l'étrier de support (4) porte un boulon de pression ajustable (18-1, 18-2, 18-3) agencé pour appuyer contre une partie (18, 19) du porte-outil (5).
  6. Ensemble d'outil selon la revendication 5, caractérisé en ce que le porte-outil comprend un évidement (24) généralement en forme de V pour recevoir le boulon de pression (18-1, 18-2, 18-3).
  7. Ensemble d'outil selon la revendication 1, caractérisé en ce que le bloc d'arrêt (2) porte un élément d'ajustement (20, 23) pouvant se mettre en prise avec le porte-outil (5) pour ajuster une position du porte-outil (5) le long de l'axe (A).
  8. Ensemble d'outil selon la revendication 7, caractérisé en ce que l'élément d'ajustement comprend un boulon fileté (20).
  9. Ensemble d'outil selon la revendication 7, caractérisé en ce que l'élément d'ajustement comprend une barre de positionnement coulissante (23), et un boulon de positionnement fileté (21, 22) pouvant se mettre en prise avec la barre de positionnement (23) pour ajuster une position de la barre de positionnement (23).
  10. Ensemble d'outil selon la revendication 1, caractérisé en ce que l'ensemble d'outil comprend en outre un écrou à ressort (121) dans lequel la seconde partie de filetage est fixée, pour définir le second raccordement fileté, la seconde fixation (7) comprenant une tête assemblée à sa tige ; l'étrier de support (4) étant fixé entre la tête et l'écrou à ressort (121).
  11. Ensemble d'outil selon la revendication 10, caractérisé en ce que l'ensemble d'outil comprend en outre un écrou à manchon (122) dans lequel la seconde partie de filetage est fixée, pour définir le second raccordement fileté, la seconde fixation (7) comprenant une tête assemblée à sa tige ; l'étrier de support (4) étant fixé entre la tête et l'écrou à manchon.
  12. Ensemble d'outil selon la revendication 1, caractérisé en ce que l'ensemble d'outil comprend un ressort (124, 125, 126, 128, 129) agencé pour appuyer de manière élastique l'étrier de support (4) contre le porte-outil (5).
  13. Ensemble d'outil selon la revendication 12, caractérisé en ce que le second trou de passage (9") est allongé dans une direction permettant à l'étrier de support (4) de se déplacer par rapport à la seconde fixation (7) et de s'éloigner du porte-outil lorsque la seconde fixation (7) est desserrée.
  14. Ensemble d'outil selon la revendication 12, caractérisé en ce que le ressort (124, 125, 126, 128, 129) s'étend dans une fente (127, 131) formée dans l'étrier de support (4).
  15. Ensemble d'outil selon la revendication 12, caractérisé en ce que le ressort comprend un ressort à lames (124).
  16. Ensemble d'outil selon la revendication 1, caractérisé en ce que la première fixation (6) constitue la seule fixation fixant l'étrier d'arrêt (3) sur le corps de support (1A), et la seconde fixation (7, 7') constitue la seule fixation fixant l'étrier de support (4) sur le corps de support (1A).
EP03445118.7A 2002-10-25 2003-10-21 Dispositif de serrage pour porte-outil Expired - Lifetime EP1413375B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2002311444 2002-10-25
JP2002311444 2002-10-25
JP2002329837 2002-11-13
JP2002329837 2002-11-13
JP2003207909A JP4111887B2 (ja) 2002-10-25 2003-08-19 工具ホルダの締結装置
JP2003207909 2003-08-19

Publications (3)

Publication Number Publication Date
EP1413375A2 EP1413375A2 (fr) 2004-04-28
EP1413375A3 EP1413375A3 (fr) 2009-09-30
EP1413375B1 true EP1413375B1 (fr) 2013-08-21

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Application Number Title Priority Date Filing Date
EP03445118.7A Expired - Lifetime EP1413375B1 (fr) 2002-10-25 2003-10-21 Dispositif de serrage pour porte-outil

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US (1) US6962468B2 (fr)
EP (1) EP1413375B1 (fr)
JP (1) JP4111887B2 (fr)
ES (1) ES2426419T3 (fr)

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RU2012143148A (ru) * 2010-03-10 2014-04-20 Тунгалой Корпорейшн Зажимной вспомогательный элемент и режущий инструмент с зажимным вспомогательным элементом
JP5815461B2 (ja) * 2012-04-26 2015-11-17 京セラ株式会社 固定部材および切削工具
CN102825275A (zh) * 2012-08-30 2012-12-19 无锡易通精密机械股份有限公司 一种用于排刀的筒夹工装
CH707123A2 (de) * 2012-10-25 2014-04-30 Utilis Ag Klemmvorrichtung mit einem Kühlmittelkanal zur Kühlung spanabhebender Werkzeuge in Drehmaschinen.
CN104128631A (zh) * 2013-12-20 2014-11-05 柳州万众汽车部件有限公司 数控车床刀具夹持装置
CN103639452A (zh) * 2013-12-23 2014-03-19 重庆望江工业有限公司 一种加工箱体深内孔的多刃组合镗刀及方法
DE202016105061U1 (de) * 2016-09-13 2017-12-14 Baum Gmbh Zerspanungstechnik & Werkzeugbau Werkzeug, insbesondere für die spanabhebende Werkstückbearbeitung
DE202017000616U1 (de) * 2017-02-06 2017-04-03 Karl-Heinz Arnold Gmbh Schneidvorrichtung zur spanabhebenden Bearbeitung von Werkstücken
JP7024963B2 (ja) * 2017-11-24 2022-02-24 エヌティーツール株式会社 工具保持装置
JP2022533859A (ja) 2019-05-29 2022-07-26 ビッグ カイザー プレツィヅィオンスヴェルクツォイク アーゲー 変位可能な刃具キャリアを締め付けるための機構を備えたボーリングヘッド
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Also Published As

Publication number Publication date
JP2004209627A (ja) 2004-07-29
US6962468B2 (en) 2005-11-08
EP1413375A2 (fr) 2004-04-28
ES2426419T3 (es) 2013-10-23
JP4111887B2 (ja) 2008-07-02
US20040136793A1 (en) 2004-07-15
EP1413375A3 (fr) 2009-09-30

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